Alberto has 92 stamps in one large album and 38 stamps in another small ablum. How can he use mental math to find how many more stamps are in the large album.

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asked Dec 14, 2019 140k views

3 votes

Alberto has 92 stamps in one large album and 38 stamps in another small ablum. How can he use mental math to find how many more stamps are in the large album.

Mathematics
middle-school

Tobias Furuholm asked

by Tobias Furuholm

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1 Answer

3 votes

92-38=54
OR
90-36=54
The one right ahead is easier to do in head.
Hence, 54 stamps

Olivier Amblet answered Dec 19, 2019

by Olivier Amblet

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